Forecast by Week

Quick Answer: On the planning page, hover any future month and click Forecast by week to open the weekly view. Edit each week's projection while Moselle keeps the total tied to your monthly forecast, then click Save weekly forecast. Setup takes about 2 minutes.

What Is Weekly Forecasting in Moselle?

Weekly forecasting lets you break a monthly forecast down into individual weeks so you can shape demand at a finer level of detail. Instead of spreading a month's demand evenly, you decide how much lands in each week — useful for promotions, launches, holidays, and any period where timing within the month matters.

Key Benefits:

• Plan around timing — Place demand in the exact weeks a promotion or launch happens • Keep totals honest — Your weekly numbers always roll up to the monthly forecast • Sharper replenishment — Weekly detail feeds more precise ordering and coverage

Prerequisites

Time Required: 2 minutes Difficulty: Beginner

Before you begin, make sure you have:

• A scenario plan with a generated forecast

• At least one future month in your plan (past months can't be edited)

• Your retail calendar set in Company Settings (see Step 1)

Step-by-Step Instructions

1

Confirm Your Retail Calendar

Weekly forecasting uses your account's retail calendar to define where each week starts and ends.

1. Go to Settings → Company → Company Settings

2. Find the Retail Calendar field

3. Confirm it is set to ISO / Standard Calendar Week (Mon–Sun)

Expected Result: Weeks in the weekly view run Monday through Sunday and are numbered by ISO week.

2

Open the Weekly View

1. Open your scenario plan on the Planning page

2. Hover over a future month in the forecast table header

3. Click Forecast by week

Expected Result: The weekly view opens, titled "[Month] Weekly Forecast", with one column per week plus a Monthly Forecast column.

3

Edit Your Weekly Projections

1. Click into any weekly cell and enter your projected demand for that week

2. Watch the Monthly Forecast column — it shows how your weekly numbers compare to the month's total

Your weekly values must add up to the monthly forecast. Moselle keeps the month total fixed as you edit, so raising one week means lowering another.

4

Adjust the Monthly Total (Optional)

The Monthly Forecast column is read-only by default so you don't change the total by accident.

1. Hover the Monthly Forecast cell

2. Click Unlock

3. Edit the monthly total inline and confirm

Expected Result: The month total updates and your weekly breakdown adjusts to the new total.

5

Save Your Weekly Forecast

1. Click Save weekly forecast

2. Navigate back to your plan

A blue dot appears on any month that has a saved weekly forecast, so you can see at a glance which months are planned by week.

Editing or Removing a Weekly Forecast

Once a month has a weekly forecast, its header menu changes:

Action	Where to Find It	What It Does
Edit weekly forecast	Month header	Reopens the weekly view to make changes
Remove weekly forecast	Month header menu	Clears the weekly detail and returns the month to a single monthly figure

If you try to leave the weekly view with unsaved changes, Moselle prompts you to Save or Discard so you never lose an edit by accident.

Frequently Asked Questions

Why don't I see "Forecast by week" on a month?

Weekly forecasting is only available for future months. Past and in-progress months are read-only, so the option won't appear.

Do my weekly numbers change my monthly forecast?

No. By default the monthly total stays fixed and your weekly edits are distributed within it. To change the total itself, use the Unlock option on the Monthly Forecast column.

What calendar do the weeks follow?

Weeks follow the ISO / Standard Calendar Week (Mon–Sun) set in your Company Settings, numbered by ISO week.

Can I remove a weekly forecast later?

Yes. Open the month's header menu and choose Remove weekly forecast to return that month to a single monthly figure.

Troubleshooting Common Issues

Problem	Solution	Time to Fix
"Forecast by week" is missing	Confirm you're on a future month — past months can't be telescoped	1 minute
Weekly totals won't save	Make sure your weekly values add up to the monthly total	2 minutes
Can't edit the Monthly Forecast cell	Hover the cell and click Unlock first	1 minute
Lost track of which months are weekly	Look for the blue dot on month headers in the plan	1 minute

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