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Billing error
Cant add new credit card. Param "providerMethodId" is not optional. or this error - Invalid paymentMethodId param: UID must contain at most 36 chars. Valid chars are a-z, A-Z, 0-9, and underscore. Can't start with a leading underscore
TL;DR
Developers are encountering errors when trying to add a new credit card due to missing parameters and incorrect formatting. The paymentMethodId should contain at most 36 characters with valid characters including a-z, A-Z, 0-9, and underscore, while not starting with a leading underscore.