Hi ​@Npoyraz ,

You can configure supplier allocation at Purchase Part level:

Purchase Part → Supplier for Purchase Part → Supplier Split tab

Setup steps

1. Create / open your Purchase Part
2. Maintain Supplier for Purchase Part records (at least 2 suppliers)
3. Go to Supplier Split
4. Add lines:
   • Supplier A → 50%
   • Supplier B → 50%
   • Define Valid From / To dates (important!)
5. Save

👉 Important: The suppliers must already exist in Supplier for Purchase Part, otherwise you cannot assign them to the split.

⚙️ How IFS behaves 

✅ 1. Split happens at requisition creation / MRP

• When a Purchase Requisition (PR) is created (manually or via MRP):
  • The system splits the required quantity according to percentages
  • It creates:
    • multiple PR lines, or
    • prompts to split the requisition

➡️ Example:

• Demand = 100 pcs
• Split = 50 / 50
  → PR:
• 50 pcs → Supplier A
• 50 pcs → Supplier B

✅ 2. It is a fixed percentage logic (not dynamic)

• The split is:
  • static
  • manually maintained
• IFS does NOT automatically rebalance based on:
  • supplier performance
  • lead times
  • stock situation

➡️ You must adjust percentages yourself over time

✅ 3. MRP logic: sequencing matters

IFS typically:

1. Calculates required quantity
2. Applies planning rules (lot size, etc.)
3. Then applies supplier split

⚠️ This leads to some side effects:

• Quantities may not respect lot sizes after split
• Small rounding differences can appear

⚠️ 4. Important behavioral limitations (often misunderstood)

🚫 Not a “target share over time”

It is:

• NOT averaging 50% over a month/year
• It is applied per requisition event

➡️ So:

• If demands come unevenly → actual share may deviate

🚫 Not inventory-aware

IFS does NOT:

• check how much you already bought from each supplier
• rebalance to maintain 50/50 historically

🚫 Not context-aware (make/buy or constraints)

Example from real case:

• If you already have supply covered from one source,
  IFS still splits the remaining demand 50/50
  (even if it doesn’t make business sense)

🚫 Doesn’t always trigger if PRs already exist

• If you have existing open PRs/POs, the split may not apply cleanly
• Best practice:
  • run MRP without existing PRs
  • or cancel/regenerate

🧠 Practical example (consultant view)

Let’s say:

• Demand: 1,000 pcs
• Already planned internally: 700
• Remaining: 300
• Split = 50 / 50

👉 IFS will do:

• 150 pcs → Supplier A
• 150 pcs → Supplier B

⚠️ Even if:

• you intended to buy only from one supplier for the remainder

🧩 When to use vs not use

✅ Good use cases

• Dual sourcing policy (e.g. risk mitigation)
• Stable, predictable demand
• Strategic sourcing split

⚠️ Not ideal for

• Dynamic allocation (capacity-based)
• Performance-driven allocation
• Make vs buy optimization
• Highly volatile demand

💡 Key takeaways 

• ✅ Use Supplier Split on Purchase Part
• ✅ Define percentages (50/50)
• ✅ Expect split at PR/MRP level
• ❗ It is static, per-event logic
• ❗ No automatic balancing or intelligence

🚀 Consultant tip (important for design discussions)

If your business says:

“We want 50/50 yearly share”

You need:

• reporting (Power BI / IFS KPIs)
• periodic manual adjustments
  or
• custom logic / optimization layer

Because standard IFS = tactical split, not strategic allocation engine

If you want, I can map this to your specific process (MRP vs manual PR vs supplier agreements), because behavior slightly changes depending on how you're generating demand.

Hope this helps!

Regards,

Pilar