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MoMo API Sand Box Q&A

Share sandbox questions and get support from the community

  • 71 Topics
  • 172 Replies
71 Topics
G
gnakoNew Member
asked in MoMo API Sand Box Q&A
[dev sandbox] Invalid subscription key for the Collection Widget | Receive mobile money payments on your website through a USSD or QR code

Hi there,It seems that you have some issues with the generated subscription keys for this Collection Widget. Can you please help me get a proper key that I can use. Neither the primary nor the secondary keys are working.

343
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22 hours ago
K
krishna.rathiNew Member
asked in MoMo API Sand Box Q&A
Subscription keys

Hello sir/madam,I have subscripted Collection Widget product but both key is not working. please help.

110
K
3 days ago
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TeccoNew Member
asked in MoMo API Sand Box Q&A
what is the collection widget about

I have been looking through the documentation and can’t find much information about the collection widget product. All I could find is that it enables a developer or partner to integrate a MoMoPay checkout button to accept Mobile Money payments on your e-commerce site. but what differentiates it from the othe collections product and how can we implement it in the sand box.

643
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8 days ago
A
Ange ArseneNew Member
asked in MoMo API Sand Box Q&A
What is the difference between a RequestToPay and a RequestToWithdraw

What is the difference between a RequestToPay and a RequestToWithdraw

161
A
15 days ago
J
jeanlinuxNew Member
asked in MoMo API Sand Box Q&A
Receiving INVALID_CALLBACK_URL_HOST error when trying to use the distribute/CashIn endpoint on PostmanCollection

I have created an API user and API key on sandbox and has set the providerCallbackHost correctly, However when I try to make a disbursement on the endpoint disbursement/v1_0/deposit, I am getting the error “Callback URL does not match the configured value.” on request. even though the callback url host is the same as providerCallbackHost when creating the API user.attached are screenshots of the request and response.  

621
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23 days ago
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ugnicholasNew Member
asked in MoMo API Sand Box Q&A
Invalid remote certificate

Hello guys,I’m receiving this error when i try to get access_token “The SSL connection could not be established, see inner exception. ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure: RemoteCertificateNameMismatch, RemoteCertificateChainErrors” I’m using .Net environment

110
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1 month ago
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jeanlinuxNew Member
asked in MoMo API Sand Box Q&A
Where are the endpoints that uses Oauth2 token for disbursements

I am building a simple app for disbursement and would like to get consent from user(merchant) before disbursement with recipients managed on the web.Now I have gotten the Oauth2 token but can not find the endpoints to actually use it.I checked use cases page and it appears I can use MerchantTransferWithConsent but there is no documentation of endpoints on Postman Collection. How do I achieve this kind of disbursement with consent flow that I have?Thanks for your time.

110
J
1 month ago
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jeanlinuxNew Member
asked in MoMo API Sand Box Q&A
CreateOauth2Token request is returning 400

I am trying to get Oauth2 token after successfully issuing a bc_authorize request and getting the auth_req_id.now trying to get token to the request by making a post to {{base_url}}/disbursement/oauth2/token/ and I keep getting 400 status error with no message, it is difficult to know exactly what I am doing wrong, I have attached screenshots of my Postman screen.~I appreciate the assistance

312
J
1 month ago
M
MalakActive
asked in MoMo API Sand Box Q&A
Authorisation

Good morning team, I hope you are doing great. I am having some concerns if you can help me:What is the role of bc-authorize and CreateOauth2Token ? (I didn’t understand how it happens in real time, or what is its use).what is the difference between CreateOauth2Token and CreateAccessToken?Why do I need bc-authorize and CreateOauth2Token if I can make my requests only with CreateAccessToken?

32915
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1 month ago
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sadikimamNew Member
posted in MoMo API Sand Box Q&A
san

How can I be gaining in momo api

40
S
1 month ago
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GeniusNew Member
asked in MoMo API Sand Box Q&A
Momo API Sandbox Internal Server Error

I am trying to create a new user with the collection sandbox API but I keep getting the error below for this endpoint and another endpoint I tested since yesterday: {"statusCode": 500,"message": "Internal server error","activityId": "98383705-c916-4012-8e07-d27644e1da22"}

302
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3 months ago
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jonathanNew Member
asked in MoMo API Sand Box Q&A
Error 500 on user creation

I have had this issue the whole of today. Is it an issue with the sandbox? { "statusCode": 500, "message": "Internal server error", "activityId": "c5f402f7-dabf-4473-8df7-2a1f4172a42d" }

80
J
3 months ago
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MalakActive
asked in MoMo API Sand Box Q&A
callback url

Hello 🤗I tried to configure the callback URL in the sandbox with two values and both didn’t work. Here are the steps I followed:1- Created and API user:{"providerCallbackHost": "localhost:3000"}2- Generated and API key.3- Generated basic auth with the reference ID of the user API and the API key.4- added this header to the requesttopay:'X-Callback-Url': 'http://localhost:3000/api/mtn'I tried these values too:"providerCallbackHost": "kiad-api-pr-28.onrender.com"'X-Callback-Url': ‘http://kiad-api-pr-28.onrender.com/api/mtn’But these urls was never reached.Can you please help me 🤕@Ddamula @allan.ddamulira @crankluga @anicet 

9512
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3 months ago
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AjayChandrasekaranNew Member
asked in MoMo API Sand Box Q&A
Not receiving callback in Sandbox

I have subscribed to the Collections product, and trying to test the request to pay (v1_0/requesttopay) in sandbox. I am setting the callback URL in the header of this request. Using the same domain I had provided while creating API user.The callback URL allows both HTTP and HTTPS, both PUT and POST is also allowed.The payments requests are getting accepted and when I do a status check they are successful. But I am not receiving any callbacks. I have tried sending multiple payment requests but did not receive callback for any of the request. Example request payload:URL: https://sandbox.momodeveloper.mtn.com/collection/v1_0/requesttopayRequest payload:{"currency":"EUR","amount":"15","externalId":"b5926558-cd36-40fa-b455-67ef5e97d2e5","payer":{"partyIdType":"MSISDN","partyId":"22933123466"},"payerMessage":"Wallet Recharge","payeeNote":"Wallet Recharge"}

650
A
4 months ago
R
renaudNew Member
asked in MoMo API Sand Box Q&A
X-Target-Environment

Hello I want to know what value concerns X-Target-Environment for the request headers in the sandbox because I put sandbox but the answer returns me an error 400 thank you kindly refer me to those who know  this is a description about X-Target-Environment The identifier of the Wallet Platform system where the transaction shall be processed. This parameter is used to route the request to the Wallet Platform system that will initiate the transaction.

993
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4 months ago
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KalungiNew Member
asked in MoMo API Sand Box Q&A
401 Acess denied: Missing Subscription Key

I keep getting this error in Postman even though I provide the Ocp-Apim-Subscription-Key holding my Primary Key. How do I set the Subscription Key Header to get rid of this error?500 Internal Server errorI have all four headers in place.It works fine when I use the API’s testing environment but I want to use something external to identify  anything being done for me behind the scenes!I’m creating API User in sandbox!

1094
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4 months ago
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lukwatajohnNew Member
asked in MoMo API Sand Box Q&A
Currency not supported. INVALID_CURRENCY

The request body below returns invalid currency. What currency codes work for Uganda? Tried altering the currencies but same error.{ "amount": "40000", "currency": "UGX", "externalId": "c1f4687688585858a173f12", "payer": { "partyIdType": "MSISDN", "partyId": "25678119xxxx" }, "payerMessage": "Payment for services", "payeeNote": "Payment for services"}

514
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4 months ago
P
PetersburgNew Member
asked in MoMo API Sand Box Q&A
Mobile Money Number Verification

Is there an API that allows me to verify if a number is registered for mobile money

300
P
4 months ago
A
Abdul BasitNew Member
asked in MoMo API Sand Box Q&A
momopay API

Do momopay have peer-2-peer API?

90
A
4 months ago
A
Abdul BasitNew Member
posted in MoMo API Sand Box Q&A
momopay

Hey, does momopay reference support abc alphabet like 123abc amd secondly can we a momopay staging account before getting a real one?

100
A
4 months ago
E
edwinfrieswijk
asked in MoMo API Sand Box Q&A
Send money to mobile number with callback

Hi,for I client I need to integrate the MTN Momo payment api. A company/cooperative wants to pay its suppliers (farmers) to their mobile numbers. I have seen the api docs, can create tokens, check balance etc in the sandbox environment. When the user is created a callback url can be registered. According to the docs the callback is used for the transfer endpoint. I was advised by others to use the ‘deposit’ endpoint to send money to the farmers ( https://sandbox.momodeveloper.mtn.com/disbursement/v1_0/deposit). But then would need calls to https://sandbox.momodeveloper.mtn.com/disbursement/v1_0/deposit/ to check the status. I cannot find info regarding this endpoint in the documentation, not sure if this is what I need to send money from a cooperative to its farmers mobile.I prefer using a callback instead to receive the status update. Question, can the deposit endpoint work with a callback? Or if not, is there another endpoint that I should use to be able to send mobile money from the

630
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5 months ago
N
nedNew Member
asked in MoMo API Sand Box Q&A
500 Internal Server Error on v1_0/apiuser

Hello, it seems that the sandbox server is acting up again. I am receiving a 500 error with every user creation request. HTTP responseHTTP/1.1 500 Internal Server Errorcontent-length: 111content-type: application/jsonvary: Origin{ "statusCode": 500, "message": "Internal server error", "activityId": "ed08f380-6e61-4ccf-bd2b-4a651709681b"}

501
D
6 months ago
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jossNew Member
asked in MoMo API Sand Box Q&A
500 Internal Server Error on v1_0/apiuser

Hi, getting the 500 internal server error without any details when trying to create API user as described here:https://momodeveloper.mtn.com/api-documentation/api-descriptionThe same result is with “Try it” feature on the site (https://momodeveloper.mtn.com/API-collections#api=sandbox-provisioning-api&operation=post-v1_0-apiuser&definition=ApiUser) and when calling it from the VPS. HTTP/1.1 500 Internal Server Errorcontent-length: 111content-type: application/jsonvary: Origin{ "statusCode": 500, "message": "Internal server error", "activityId": "93a3063e-****"}The system returns Activity ID where can I find details related to it?

3036
D
6 months ago
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kapiskiNew Member
asked in MoMo API Sand Box Q&A
500 Internal Server Error on collection/token and v1_0/apiuser

Hi,I'm getting internal error 500 when trying to get access token, same thing for API user creation.[2024-06-01 08:34:25] local.ERROR:Server error: `POST https://sandbox.momodeveloper.mtn.com/collection/token/` resulted in a `500 Internal ServerError` response:{ "statusCode": 500, "message": "Internal server error", "activityId": "26ad2b84-b5fb-4035-a0e7-fcf80c1e5b23" }It has the same behavior as described in the following topic:: 

642
D
6 months ago
D
darknessclmmNew Member
asked in MoMo API Sand Box Q&A
Cannot access momo's payUrl

A few days ago, creating a payUrl to get a payment QR code went very well, however, today when testing the payment function again, even though there was no error during the order creation process and when checking the transaction status, the order still exists, but my payUrl is displayed as in the picture below, why is that? 

934
D
6 months ago

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