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iOS SAP TechEd Missions available for public

Hi community,

for those who I’ve met on SAP TechEd in 2019, I’ve promised to make the iOS TechEd missions available after TechEd and here we are.

Feel free to take a look and try them out:

I hope you will enjoy working through the missions.

As always Happy Coding!




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  • Thanks, Kevin. I’ve completed the first Image Classification app mission at

    It certainly took me longer than 2hrs 10 min, but I’ve got it all working. At times I had to go backwards and revisit earlier sections to get things just right.

    I did have a few issues, and I think 1 or 2 that could use revision in the mission code:

    1. Constraints – 0 doesn’t seem to “stick”, and always seems to reset to 4. It doesn’t really seem to matter, but there is a 4 pixel border in my app:
    2. Prototype cells require (maybe just warning) a reuse identifier name. I called them customerIdentifier and productIdentifier:
    3. The ML Model ouput must be used in the project later, not the project itself. I missed dragging the output model out into Finder as a file.
    4. The SDK code uses cell.keylabel which throws a lot of warnings to be replaced. Just warnings, but  the SDK may need updated for ‘keyLabel’ is deprecated: This property is has been deprecated.  Please set the `title.text` property.
    5. The ML model reference in the code is TechEd2019 and needs to be changed to ProductImageClassifier. Combined with using the ML project, rather than model, this took some time for me to unwind.

    As an SAP developer, but inexperienced iOS developer, it wasn’t always easy for me to follow your relative coding instructions or know exactly why I was putting code somewhere and how it matters (e.g. “Add the following lines of code inside the class brackets and right below the class definition”) but I ultimately figured it out and got the app working to classify laptop and office chair images (although not the resulting category product *images* via lazy loading).

    I thought highlighting my issues above might help others who find this mission later. Sharing a public repository might also help everyone get the code exactly right. I’ve pushed my Xcode project to GitHub here:

    Many thanks for this initial foray into the iOS SDK,  Xcode and Create ML! It was worth the time from several angles!