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ERROR CODES
Error 100
Error 100 ("Invalid parameter") is the WhatsApp Cloud API's general validation error: the request contains a parameter Meta does not accept, such as a phone number in the wrong format, an unsupported message type, a media ID that does not exist, an unknown field, or a value outside its allowed length. The message is rejected before any delivery attempt.
template variableerror 132000cloud apierror 100 invalid parameter
Why it matters
100 is a developer error and the first thing an integration hits. The error message usually names the field, but some cases are subtle: a phone number with a leading plus or zero, a media URL Meta cannot fetch, a template component in the wrong order.
In VGraple CRM
Phone numbers are normalised to E.164 before every send, media is uploaded and referenced by ID, and template payloads are built from the approved template so 100 is rare in the product; API users get the field name and an example in the error. The error 100 guide lists the cases we see most.
Related terms
Template Variable, Error 132000, Cloud Api, help/error-100-invalid-parameter.