Previously used Data Extension sendable fields can overwrite target Filtered Data Extension sendable fields
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Previously used Data Extension sendable fields can overwrite target Filtered Data Extension sendable fields

Marketing Cloud Email Studio , Marketing Cloud Sending

Last updated 2021-10-29 ·Reference W-10091188 ·Reported By 1 users

No Fix

Summary
If the source Data Extension of a Filtered Data Extension had a sendable field that doesn't match the target Filtered Data Extension and then is marked non-sendable, the sendable field of the Filtered Data Extension will be overwritten by the source Data Extension field. Even if the source is no longer sendable.

Repro
1) Create a Sendable Data Extension with sendable field
2) Create a Filtered Data Extension using Data Extension created in step 1 as source
3) Mark the Data Extension from step 1 non-sendable
4) Change the sendable field in Filtered Data Extension from step 2
5) Refresh the Filtered Data Extension and notice the original sendable field from step 1 is added back

Workaround
Re-save the source Data Extension as sendable with the desired sendable field and then save it again as non-sendable.

Reported By (1)

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