What’s the best suppression data format for system interoperability?
Best suppression data format for system interoperability is typically simple delimited files (CSV) with standardized fields: email address, suppression date, suppression reason, and source system. This format maximizes compatibility across platforms.
More sophisticated implementations use APIs for real time synchronization. Standardized endpoints accepting and providing suppression data enable automated cross system updates. Many ESPs support webhook based suppression sync.
Whatever format you use, ensure consistency in email address normalization. Lowercase addresses, trim whitespace, and apply consistent formatting so the same address matches across systems.
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