diff --git a/.buildlibrary b/.buildlibrary
index e4058f39d..52e75a45e 100644
--- a/.buildlibrary
+++ b/.buildlibrary
@@ -1,4 +1,4 @@
-ValidationKey: '5227948'
+ValidationKey: '5252636'
 AutocreateReadme: yes
 allowLinterWarnings: no
 AddInReadme: tutorial.md
diff --git a/CITATION.cff b/CITATION.cff
index e8060304f..689ad418d 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -2,8 +2,8 @@ cff-version: 1.2.0
 message: If you use this software, please cite it using the metadata from this file.
 type: software
 title: 'piamInterfaces: Project specific interfaces to REMIND / MAgPIE'
-version: 0.26.2
-date-released: '2024-08-19'
+version: 0.26.3
+date-released: '2024-09-06'
 abstract: Project specific interfaces to REMIND / MAgPIE.
 authors:
 - family-names: Benke
diff --git a/DESCRIPTION b/DESCRIPTION
index a5d8725fc..6b670c75c 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,8 +1,8 @@
 Type: Package
 Package: piamInterfaces
 Title: Project specific interfaces to REMIND / MAgPIE
-Version: 0.26.2
-Date: 2024-08-19
+Version: 0.26.3
+Date: 2024-09-06
 Authors@R: c(
     person("Falk", "Benke", , "benke@pik-potsdam.de", role = c("aut", "cre")),
     person("Oliver", "Richters", role = "aut")
@@ -14,7 +14,7 @@ Imports:
     dplyr (>= 1.1.1),
     gms,
     magclass,
-    mip (>= 0.144.3),
+    mip (>= 0.149.3),
     readxl,
     quitte (>= 0.3137.1),
     piamutils (>= 0.0.12),
diff --git a/R/checkSummations.R b/R/checkSummations.R
index afdeb0750..e55459f7e 100644
--- a/R/checkSummations.R
+++ b/R/checkSummations.R
@@ -51,7 +51,7 @@ checkSummations <- function(mifFile, outputDirectory = ".", template = NULL, sum
     summationsFile <- chooseFromList(summationsOptions, multiple = FALSE, type = "summation file")
   }
   if (isTRUE(summationsFile == "extractVariableGroups")) {
-    checkVariables <- extractVariableGroups(levels(data$variable), keepOrigNames = TRUE)
+    checkVariables <- extractVariableGroups(levels(data$variable), keepOrigNames = TRUE, sorted = TRUE)
     names(checkVariables) <- make.unique(names(checkVariables), sep = " ")
   } else {
     summationGroups <- getSummations(summationsFile)
diff --git a/README.md b/README.md
index 645471bbf..66da33555 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Project specific interfaces to REMIND / MAgPIE
 
-R package **piamInterfaces**, version **0.26.2**
+R package **piamInterfaces**, version **0.26.3**
 
 [![CRAN status](https://www.r-pkg.org/badges/version/piamInterfaces)](https://cran.r-project.org/package=piamInterfaces)  [![R build status](https://github.com/pik-piam/piamInterfaces/workflows/check/badge.svg)](https://github.com/pik-piam/piamInterfaces/actions) [![codecov](https://codecov.io/gh/pik-piam/piamInterfaces/branch/master/graph/badge.svg)](https://app.codecov.io/gh/pik-piam/piamInterfaces) [![r-universe](https://pik-piam.r-universe.dev/badges/piamInterfaces)](https://pik-piam.r-universe.dev/builds)
 
@@ -107,7 +107,7 @@ In case of questions / problems please contact Falk Benke <benke@pik-potsdam.de>
 
 To cite package **piamInterfaces** in publications use:
 
-Benke F, Richters O (2024). _piamInterfaces: Project specific interfaces to REMIND / MAgPIE_. R package version 0.26.2, <https://github.com/pik-piam/piamInterfaces>.
+Benke F, Richters O (2024). _piamInterfaces: Project specific interfaces to REMIND / MAgPIE_. R package version 0.26.3, <https://github.com/pik-piam/piamInterfaces>.
 
 A BibTeX entry for LaTeX users is
 
@@ -116,7 +116,7 @@ A BibTeX entry for LaTeX users is
   title = {piamInterfaces: Project specific interfaces to REMIND / MAgPIE},
   author = {Falk Benke and Oliver Richters},
   year = {2024},
-  note = {R package version 0.26.2},
+  note = {R package version 0.26.3},
   url = {https://github.com/pik-piam/piamInterfaces},
 }
 ```
diff --git a/tests/testthat/test-getMapping.R b/tests/testthat/test-getMapping.R
index 884294fd8..2ccf4ac87 100644
--- a/tests/testthat/test-getMapping.R
+++ b/tests/testthat/test-getMapping.R
@@ -15,6 +15,19 @@ for (mapping in names(mappingNames())) {
     }
     expect_true(length(conflictsigns) == 0, label = paste0(mapping, " has no merge conflicts"))
 
+    # check whether piam_factor column has , as decimal separator
+    factorWithComma <- mappingData %>%
+      filter(grepl(",", .data$piam_factor)) %>%
+      pull("variable")
+    if (length(factorWithComma) > 0) {
+      warning("These variables in mapping ", mapping, " have a piam_factor using a ',' as decimal. Please use '.':\n",
+              paste(factorWithComma, collapse = "\n"),
+              "\nYou can run: devtools::load_all(); write.csv2(getMapping('", mapping,
+              "') %>% mutate(piam_factor = gsub(',', '.', .data$piam_factor)), mappingNames('", mapping,
+              "'), na = '', row.names = FALSE, quote = FALSE)")
+    }
+    expect_true(length(factorWithComma) == 0)
+
     # look for Moving Avg prices in REMIND variables
     movingavg <- mappingData %>%
       filter(grepl("^Price\\|.*\\|Moving Avg", .data$piam_variable),
@@ -90,19 +103,6 @@ for (mapping in names(mappingNames())) {
     }
     expect_true(length(factorWithoutVar) == 0)
 
-    # check whether piam_factor column has , as decimal separator
-    factorWithComma <- mappingData %>%
-      filter(grepl(",", .data$piam_factor)) %>%
-      pull("variable")
-    if (length(factorWithComma) > 0) {
-      warning("These variables in mapping ", mapping, " have a piam_factor using a ',' as decimal. Please use '.':\n",
-              paste(factorWithComma, collapse = "\n"),
-              "\nYou can run: devtools::load_all(); write.csv2(getMapping('", mapping,
-              "') %>% mutate(piam_factor = gsub(',', '.', .data$piam_factor)), mappingNames('", mapping,
-              "'), na = '', row.names = FALSE, quote = FALSE)")
-    }
-    expect_true(length(factorWithComma) == 0)
-
     # checks only if source is supplied
     if ("source" %in% colnames(mappingData)) {
       # check for empty piam_variable with source