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Popular Developer Topics/Articles

General Queries

Are the Merchant Id and merchant key same?What special characters are allowed in Order Id?Where can I see transactions of my customers?More show more arrow - right

Testing and Integration

What are the different test instrument & their details for the testing environment in the payment gateway?I am getting Invalid mid issue?Where do I get the Test/Production credentials e.g. MID, merchant key etc?More show more arrow - right

Checksum

What is Checksum and how is it generated and verified?What is the usage of merchant key and is it used as parameter for the checksum generation?Why am I getting a Checksum mismatch/Invalid checksum in the response from Paytm?More show more arrow - right

Callback URL

What is the call back URL?Can we configure different call-back URL for succesful and failed transaction?Is it possible to have the same call back URL for WEB and WAP (App)?More show more arrow - right

App/SDK Integration

Do Paytm All-in-One SDK supports both Android & iOS?Where do I find the Android/iOS SDK?For Android and iOS how will the checksum generated?More show more arrow - right

Website/Plugins Integration

How will the checksum be generated for website integration?How will the checksum be verified for website integration?What is the use of Paytm payment plugin and where can I find the latest version?More show more arrow - right

Refund and subscriptions

What is Refund Reference ID and why is this needed?What are the Constraints on refunds?How is refunds are managed in Payment link?More show more arrow - right

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