Contact data should be current enough for the intended workflow and limited to information the union is authorized to maintain.
Step 01
Record provenance
Note whether the information came from the member, an employer file, a staff correction or another approved source.
Step 02
Respect preference and purpose
Use preferred channels and classifications consistently, especially where bulk communication or consent is involved.
Step 03
Resolve conflicts
Define which source wins when values disagree and preserve a controlled correction history.