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Bhalchandra Wadekar

Why does missing Root Node mapping cause 'Value missing in the context' error?

Feb 12 at 04:36 PM | 85 Views

Consider a message type as:

User          1..1
|_ Address    0..*

For the simplicity, let's consider that both components use this message type.

If 'User' (the root node) is mapped one-to-one, then mapping is successful. However, not mapping the root node causes 'Cannot create target element .... Values missing in queue context ....' error.

Why is it necessary to map root node?

Please could you direct me towards documentation explaining this.

Kind regards,

Bala

SAP Process Integration | mapping
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  • Bhalchandra Wadekar
    Feb 17 at 02:00 PM

    More clarification:

    Consider this data type:

    User          1..1
  Name        0..1
  Address     0..*

    When root node is not mapped:

    For following input, no errors happen.

    <User>
   <Name>Bhalchandra</Name>
   <Address>SAP Community</Address>
</User>

    For following input, error happens:

    <User>
    <Name>Bhalchandra</Name>
    <!-- Notice the missing Address node here>
</User>

    Notice the missing Address node. However, the Address node is optional on both sides.

    When root node is mapped, missing Address node does not cause any issues.

    Why does not mapping root node causes 'Value missing in queue context' error when on target side the element is optional?

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1 Answer

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    Anoop Rai
    Feb 13 at 08:58 PM

    Hi Bala,

    This is not because of root or child elements. This error is because of occurrence of User as 1..1. Change it to 0..1 or 0..unbounded, you will not get error.

    If occurance of any element is 1..1 or 1..unbounded means its mandatory in target message and has at least one value for that.

    Regards,

    Anoop

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