Handle collected values during Order Posting (“Header Steps”).

Handle your Steps and save values to database, so they can subsequently can be accessed from standard BC posting events.
Event is executed once, triggered when user "posts" on the mobile device.

Before you can use these events to handle custom Steps, you must add the Steps using OnGetPutAwayOrderLines_OnAddStepsTo... events.

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Case: Add Header Step to inbound goods documents (Signature Step) — The warehouse employee must sign inbound goods (signature step).
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Case: Add Header Step to inbound goods documents (Text Step) — When receiving goods, a new text collector step must be added for the user to enter comments about goods being damaged etc.
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Case: Show G/L Account Lines and Non-Inventory Items on Receive and Pick — Allow Receipt and Pick of Non-Inventory items i.e. Service Items
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How-to: Register Quantity By Multiplication (enableMultiplier) — You want to scan the Quantity multiplier and then manually type the quantity to automatically calculate the total quantity to register.
The multiplers are defined by using the "Qty. per Unit of Measure" from the barcode "Unit of Measure" in the "Item Reference". See Barcode Quantity (enableMultiplier) Example: Box (5) x 10 = 50 Pcs
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How-to: Register Quantity By Scan — You want to scan the Quantity . Either one piece or have the system calculate quantity based on "Item Cross Reference".
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How-to: Subscribing to standard events — You may subscribe to posting events in the Business Central base App to process collected values, or when events offered by Extension API do not fit your exact need.