4.23Retryable versus non-retryable

This is an excellent interview topic.

Suppose:

SALESFORCE:TIMEOUT

Potentially:

retry

Suppose:

SALESFORCE:CONNECTIVITY

Potentially:

retry

But suppose Salesforce says:

INVALID_FIELD

because you referenced:

Foo_Bar__c

which doesn't exist.

Retrying 10 times is pointless.

Likewise:

required field missing

invalid email

validation rule failed

insufficient permission

normally requires configuration/data correction.

So divide failures into:

Transient
---------
timeout
temporary connectivity
service unavailable
rate pressure

Potentially retry


Permanent / business / config
-----------------------------
invalid field
missing required data
validation rule violation
bad object
permission issue

Don't blindly retry