I am trying to integrate paytm. but I am getting error = ' App Invoke is not allowed for this merchant in react native paytm integration.'
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Did you find its solution? Please inform me as soon as possible! – Megamind Core Jan 25 '22 at 11:13
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Please share the code of how you are calling the starttransaction method and please make sure that if you are testing on a staging environment you have a Paytm staging app that can be downloaded from GitHub

Soumya Vats
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You can try any of these:
- Check if merchant id and merchant key is valid.
- Website to be mentioned as "DEFAULT".
- Request Body contains all the required key values.

HostelDevta
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