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The VISA checksum is calculated dynamically versus the ICS. A specific tag 0xDF1A is used to set the TTQ. It must be added and updated in all combinations in “Other TLV(s)” section (ENTRYPOINT tab) with the TTQ ICS value.
This reference ICS doesn't document Visa values to be set (i.e., customers requirements) but Agnos supported values and how to set them in regards with any potential MSD/qVSDC ICS.
*VCPS: Visa Contactless Payment Specification
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