diff --git a/CHANGELOG.md b/CHANGELOG.md
index 71271cfe..d04fc4a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -35,6 +35,7 @@
 * [UIQM-698](https://issues.folio.org/browse/UIQM-698) Validate 006/007 field lengths.
 * [UIQM-704](https://issues.folio.org/browse/UIQM-704) Linked fields - combine split fields before sending for validation.
 * [UIQM-708](https://issues.folio.org/browse/UIQM-708) Change 007 Microforms type to allow 4 characters in RRR/RR field.
+* [UIQM-712](https://issues.folio.org/browse/UIQM-712) In field 007 for Projected Graphic type: change the `MfS` field type to `Byte` to allow only 1 character to be entered.
 
 ## [8.0.1] (https://github.com/folio-org/ui-quick-marc/tree/v8.0.1) (2024-04-18)
 
diff --git a/src/QuickMarcEditor/QuickMarcEditorRows/PhysDescriptionField/ProjGraphicPhysDescriptionFieldConfig.js b/src/QuickMarcEditor/QuickMarcEditorRows/PhysDescriptionField/ProjGraphicPhysDescriptionFieldConfig.js
index 5d1d98d5..a8c0eb03 100644
--- a/src/QuickMarcEditor/QuickMarcEditorRows/PhysDescriptionField/ProjGraphicPhysDescriptionFieldConfig.js
+++ b/src/QuickMarcEditor/QuickMarcEditorRows/PhysDescriptionField/ProjGraphicPhysDescriptionFieldConfig.js
@@ -16,7 +16,7 @@ const ProjGraphicPhysDescriptionFieldConfig = [
     type: SUBFIELD_TYPES.BYTE,
   },
   {
-    type: SUBFIELD_TYPES.STRING,
+    type: SUBFIELD_TYPES.BYTE,
     name: 'Medium for sound',
   },
   {