Need some clarification on TDS section 194(Q)

Hi,

We have followed steps as mentioned in the Doc ID 2758546.1, In that they mention "it is better to have separate tax type created for GST taxes for 194Q purpose otherwise if same GST taxes used and applied to transaction then TDS will be calculated under different section also." My doubt is already we are using the existing tax types and attached in PO's and same also received and invoiced. In that we have to replace the new tax type in all existing purchase orders or leave it the existing tax type, If transaction amount exceeds the 50 lacs, it will calculate TDS 0.1% automatically based on the provide