Inject a custom field into the app user profile, persist it with the per-field save filter, and read it back into the phone-data payload.

Feed your own lat/lon/icon/snippet markers to the in-app Map screen via mam_get_phone_data_before_send, with the exclude-from-map gotchas.

Use MAM Suite’s add-fields filters to inject custom fields into the contact form or the Add/Edit Listing form in code, including mobile keyboard types.