What Do I Do If an SMS Fails to Be Sent and Error Code E200028 Is Reported?

Check the value of templateParas in the request. Check whether the number of variables in the template is correct and whether the length of variables is less than the length defined in the template specified by templateId.

If the template specified by templateId is a non-variable template, the request does not carry templateParas. If templateParas is carried, leave it blank.

For example:

The template content is: Verification code: ${NUM_6}. Please complete the verification as soon as possible. Have a nice day!

The template contains a variable of the numeric type. The variable contains a maximum of six digits.

The following are examples of correct values:

templateParas='["12345"]'; //SMS sending API

templateParas=["345678"]; //Batch SMS sending API

The following are examples of incorrect values:

templateParas='["123","456"]'; //SMS sending API. The number of variables is incorrect.

templateParas='["1234567"]'; //SMS sending API. The variable length is incorrect.

templateParas='["1a2b3c"]'; //SMS sending API. The variable content is incorrect.