ETK Rejection via SMS

The VIA SMS RET mechanism allows service providers with a ViA package to collect ETK rejection notifications from recipients via SMS. These messages are sent to the short code 3338 (source: IYS_KISAMESAJ).

• Rejection notifications can be processed using brand IYS numbers or brand short names.

• A maximum of three brand short names can be assigned per brand.

• Short names can be managed via the İYS Web portal under Brand Short Name Management.

SMS format in the IYS test environment

Recipients must send an SMS in the following format:

RET <BRAND_SHORT_NAME> SDXIYS → 3338

Example request

RET SDXNETMERA SDXIYS → 3338

Processing and synchronization with Netmera

When a recipient unsubscribes via SMS, their rejection is recorded in the IYS system.

Netmera Sync:

Netmera syncs data nightly to track and update permission changes. If a recipient’s permission status changes, it is updated in Netmera's system automatically.